Motors: spring – weight – or animal powered – Spring – With winding means
Patent
1987-07-13
1988-08-09
Herrmann, Allan D.
Motors: spring, weight, or animal powered
Spring
With winding means
185 37, 185 43, F03G 100
Patent
active
047622024
ABSTRACT:
An energy storing device comprises a first drum, a second drum and at least one intermediate drum, an elastic cord wound from the first drum to the second drum via the intermediate drum, and means for mechanically connecting the drums so that the peripheral displacement of the second drum is greater than that of the intermediate drum and that of the intermediate drum is greater than that of the first drum. By providing the at least one intermediate drum, energy output from the device can be obtained even if the initial strain of the elastic cord is zero, and high energy output efficiency can be obtained in comparison with conventional one drum and two drum devices.
REFERENCES:
patent: 1820967 (1931-09-01), Enyeart
patent: 3308907 (1967-03-01), Bodkin
Fukui Akio
Ogawa Masahiro
Herrmann Allan D.
Toyota Jidosha & Kabushiki Kaisha
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